MY154452A - An apparatus and a method for decoding an encoded audio signal - Google Patents

An apparatus and a method for decoding an encoded audio signal

Info

Publication number
MY154452A
MY154452A MYPI2011000095A MYPI20110095A MY154452A MY 154452 A MY154452 A MY 154452A MY PI2011000095 A MYPI2011000095 A MY PI2011000095A MY PI20110095 A MYPI20110095 A MY PI20110095A MY 154452 A MY154452 A MY 154452A
Authority
MY
Malaysia
Prior art keywords
decoding
algorithm
encoded
accordance
decoder
Prior art date
Application number
MYPI2011000095A
Inventor
Neuendorf Max
Jander Manuel
Bacigalupo Virgilio
Grill Bernhard
Kraemer Ulrich
Multrus Markus
Popp Harald
Rettelbach Nikolaus
Nagel Frederik
Lohwasser Markus
Gayer Marc
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41131685&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MY154452(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MY154452A publication Critical patent/MY154452A/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Stereophonic System (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

AN APPARATUS FOR DECODING (100) AN ENCODED AUDIO SIGNAL (102), THE ENCODED AUDIO SIGNAL (102) COMPRISING A FIRST PORTION (104A) ENCODED IN ACCORDANCE WITH A FIRST ENCODING ALGORITHM, A SECOND PORTION (104B) ENCODED IN ACCORDANCE WITH A SECOND ENCODING ALGORITHM, BWE PARAMETERS (106) FOR THE FIRST PORTION (104A) AND THE SECOND PORTION (104B) AND A CODING MODE INFORMATION (108) INDICATING A FIRST DECODING ALGORITHM OR A SECOND DECODING ALGORITHM, COMPRISES A FIRST DECODER (110A), A SECOND DECODER (110B), A BWE MODULE (130) AND A CONTROLLER (140). THE FIRST DECODER (110A) DECODES THE FIRST PORTION (104A) IN ACCORDANCE WITH THE FIRST DECODING ALGORITHM FOR A FIRST TIME PORTION OF THE ENCODED SIGNAL (102) TO OBTAIN A FIRST DECODED SIGNAL (114A). THE SECOND DECODER (110B) DECODES THE SECOND PORTION (104B) IN ACCORDANCE WITH THE SECOND DECODING ALGORITHM FOR A SECOND TIME PORTION OF THE ENCODED SIGNAL (102) TO CBTAIN A SECOND DECODED SIGNAL (114B). THE BWE MODULE (130) HAS A CONTROLLABLE CROSSOVER FREQUENCY (FX) AND IS CONFIGURED FOR PERFORMING A BANDWIDTH EXTENSION ALGORITHM USING THE FIRST DECODED SIGNAL (114A) AND THE BWE PARAMETERS (106) FOR THE FIRST PORTION (104B), AND FOR PERFORMING A BANDWIDTH EXTENSION ALGORITHM USING THE SECOND DECODED SIGNAL (114B) AND THE BANDWIDTH EXTENSION PARAMETER (106) FOR THE SECOND PORTION (104B). THE CONTROLLER (140) CONTROLS THE CROSSOVER FREQUENCY (FX) FOR THE BWE MODULE (130) IN ACCORDANCE WITH THE CODING MODE INFORMATION (108).
MYPI2011000095A 2008-07-11 2009-06-23 An apparatus and a method for decoding an encoded audio signal MY154452A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7987308P 2008-07-11 2008-07-11
US10382008P 2008-10-08 2008-10-08

Publications (1)

Publication Number Publication Date
MY154452A true MY154452A (en) 2015-06-15

Family

ID=41131685

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2011000095A MY154452A (en) 2008-07-11 2009-06-23 An apparatus and a method for decoding an encoded audio signal

Country Status (17)

Country Link
US (3) US9025777B2 (en)
EP (3) EP2257944B1 (en)
JP (4) JP5323179B2 (en)
KR (3) KR101205593B1 (en)
CN (3) CN102007537B (en)
AR (3) AR072739A1 (en)
AT (2) ATE532177T1 (en)
AU (3) AU2009267485B2 (en)
BR (2) BRPI0906320B1 (en)
CA (3) CA2718740C (en)
ES (3) ES2376849T3 (en)
MX (3) MX2010010749A (en)
MY (1) MY154452A (en)
PL (3) PL2257944T3 (en)
RU (3) RU2509381C2 (en)
TW (3) TWI453732B (en)
WO (3) WO2010003582A1 (en)

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